What a great pair of waterproof trousers, well worth the money!
The 3/4 zips and button combo are great for ventilation and make for incredibly easy and fast putting on time (it's well worth keeping them in your backpack already unzipped/buttoned for quick putting on!).
As the other reviewers have said, there is none of the annoying rustling whilst walking that the cheaper end products give you, but don't forget that these are waterproof trousers, so they aren't going to be silent!
These trousers kept me both warm and dry whilst walking in the lakes and cannot recommend enough!